Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
91P/Russell 3
Classification: Jupiter-family Comet          SPK-ID: 1000074
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
:
Orbital Elements at Epoch 2454702.5 (2008-Aug-24.0) TDB
Reference: JPL K203/9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3300667330034073 2.303e-07  
a 3.890928150631438 2.3154e-07 au
q 2.60666220760153 9.7429e-07 au
i 14.09112981309247 1.9457e-05 deg
node 247.8983368232365 6.605e-05 deg
peri 354.881178691618 9.5384e-05 deg
M 148.1936237575201 4.4039e-05 deg
tp 2453548.501455958272
(2005-Jun-27.00145596)
0.00029022 TDB
period 2803.355942862829
7.68
0.00025023
6.851e-07
d
yr
n .1284175136291693 1.1463e-08 deg/d
Q 5.175194093661346 3.0796e-07 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A1 [EST] -1.087100297314223E-7 4.034E-9
A2 [EST] 1.976424003113985E-9 7.553E-11
A3 [EST] 8.530645011240852E-9 1.866E-9
  Orbit Determination Parameters
   # obs. used (total)      248  
   data-arc span      5912 days (16.19 yr)  
   first obs. used      2004-03-18  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .89975  
   source      ORB  
   producer      Shantanu Naidu  
   solution date      2020-Jul-09 15:48:48  

Additional Information
 Earth MOID = 1.59449 au 
 Jupiter MOID = .0842916 au 
 T_jup = 2.921 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
comet total magnitude M1 7.3   0.8 K203/9 from 81 observations, assumed slope, autocmod 2.8
comet total magnitude slope K1 23.   n/a K203/9 autocmod 2.8
comet nuclear magnitude M2 15.6   01. K203/9 from 138 observations, autocmod 2.8
comet nuclear magnitude slope K2 5.   n/a K203/9 autocmod 2.8
comet nuclear phase coefficient PC 0.03   n/a K203/9 autocmod 2.8

91P/Russell 3          Discovered 1983-Jun-14 by Russell, Kenneth S. at U. K. Schmidt Telescope Unit, Siding Spring
discovered on plate/photo taken on discovery date as well as 6/15
Reference: comet.disLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 Perihelion 
Year
(est.)
 New-Style 
Desig
Roman
 Numeral 
Year/
 Letter 
 1990.1   91P/1989 A4   1990 VII   1989d 
 1982.5   91P/1983 L1   1982 IX   1983i 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-05 09:46 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin